Nut-lock.



D. J. BLOCHER.

NUT LOCK.

APPLICATION FILED on. 18. 1913.

' Patented Apr. 6, 1915.

F 0 Z. v

m w M w DANIEL. J. Badman, OE as.

NUT-LOC msaeee.

T all whom it may concern:

'l 3e it lmown that I DANIEL Bnoonnn, a citizen of. the Unite States, resld ng at Pearl City, in the county of Stephenson and State of Illinois, have invented certain new and useful Improvements in Nut-Locks, of which the following is a specification.

'This invention relates to nut locks and has for its primary object toarrange suitable means with the nut; for locking the same on a bolt, the means being carried within the nut so as to give the same the appearance of the ordinary type of nut now in use. Another object of this invention is to provide a nut which may be associated with the usual type of bolt, and one which is simple of construction, durable and inexpensive-to manufacture. I Other objects as well as the nature, characteristic features and scope of my inventionwill be more readily understood from the following description taken in connection with the accompanying drawings and'pointed out in the claims forming a part of this specification.

Referring to the drawings :Figure 1 is aside elevation of a bolt, a part thereof being shown in longitudinal section illustrating the application of my improved nut, the nut being shown in cross section; Fig. ,2 is a, front elevation of my improved-nut; and

Fig; 3 is a sectional view taken on the line 3-3 of Fig. 20

In the drawings wherein is illustrated the preferred embodiment of this invention a bolt 5 is provided which may beof the ordinary or any desired form being provided with an externally screw-threaded shank 6 having formed therein a longitudinal oove 7. V Mounted for movement on the threaded shank 6 of the bolt 5 is my improved'nut 8 which is provided with an internally thread-' ed bore 9, a portion of said bore being cutout as indicated at 10 and shown to advantage in Fig. 3. 'At diametrically opposite points on the outer face of the nut, arecutout portions 11 the function of which will presently appear. Mounted in the cut-out portion 10 of the nut & is aninelastic washer 12' which is preferablymade of lead or an analogous soft metal, the washer having ex- ,tendin from the outer periphery thereof a pair 0 fingers or lugs 13 which are, adapted tosnugly engage'in the cut-out, ortions 11 which are formed in the outer ace of the of the advantages of my invention.

ings it will be seen that the washer 12 extends downwardly into the cut-out portion of the bore. 10 and the fingers 13 thereof areso formed as to lie flush with the outer or' front face of the nut, thereby in-no way detracting from its appearance.

In operation the inelastic washer 12 is seated in the cut-out portion 10 ofthe nut and the nut threaded on the screw-threads 6 of the bolt in theordinary manner and to the desired point. As soon as the desired point has been reached and-itis desired to lock thefnut. on the .bolt, asuitable instrument is used for exerting pressure on the inelastic washer, which as previously pointed Specification of Letters Patent. Patented Apr. Q, 1915. I applicatiomfiled October 18, 1913. Serial No. 798,016. 1 I

' nut. Upon reference to Fig. 3 of the drawout is preferably formed of a soft metal, so

as to cause the metal to be forced into the threads thereby preventing the accidental reverse rotation of the nut on the bolt, al-

though, it is evident the nut may be reversely turned on the bolt throu h the medium of awrench orsimilar tool, the inelastic washer merely preventing the reverse rotation of the nut on the bolt, caused by vibration or the like. Where a more ositive locking means is desired, the longitudinal groove 7 has been formed in the bolt in which the metal will be forced. when ressure is exerted on the washer 12-. This orm only being used in exceptionalcases.

It will be understood'that the above description and accompanying drawings comprehend only. the general and preferred embodiment of my invention and that various minor changes in details of construction, proportion and arrangement of the parts may be made within the scope of the appended claims and without sacrificing any Having thus fully. described my invention what I claim as new and desire to secure by Letters Patent is 1. A nut lock including a bolt having a threaded shank and provlded with a longitudinally extending groove, a nut threaded on'the bolt and provided'with an annular depression in its outer face, and a soft washer mounted in said depressed portion having lugs formed thereon for engagement with complemental grooves in sai nut for holding the washer m a fixed position, said -washer adapted to be forced into the threads oove of said bolt to prevent accidental 'disp acement of the nut.

and

- 2. A nut lock, incombinationwith a belt g a g 1,134,666

provided with a longitudinal groove, a nut Washer and lying in said cut-out portions 10 having a portion of its outer face cut-out in the forward face of said nut for the purand a pair of cut-out portions formed at pose set forth.

diametrically opposite points on the outer In testimony whereof I aflix my signature face of said nut communicating With the in'presence of two Witnesses.

first mentioned cut-out portion, an inelastic DANIEL J. BLQCHER. Washer arranged in said first mentioned cut- Witnesses: out portion, and a plurality of fingers ex- ORIE W. Dow,

tending from the outer periphery of said C. B. 'BARKLOW. 

